Title:
PROJECTION DEVICE, PROJECTION SYSTEM, AND STRUCTURE WITH PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/013335
Kind Code:
A1
Abstract:
A projection device (10) projects light onto a structure (ST) or into the surrounding environment (NT) to illuminate a projection area (LP). The projection device has a coherent light source (20) and a diffractive optical element (40) for diffracting light emitted from the coherent light source.
Inventors:
NAKATSUGAWA KAORI (JP)
KURASHIGE MAKIO (JP)
NISHIO SHUMPEI (JP)
NAKAI TOSHIYUKI (JP)
HATORI SHIGEKI (JP)
HOJO MIKIKO (JP)
ISHIDA KAZUTOSHI (JP)
KURASHIGE MAKIO (JP)
NISHIO SHUMPEI (JP)
NAKAI TOSHIYUKI (JP)
HATORI SHIGEKI (JP)
HOJO MIKIKO (JP)
ISHIDA KAZUTOSHI (JP)
Application Number:
PCT/JP2019/027804
Publication Date:
January 16, 2020
Filing Date:
July 12, 2019
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
F21S2/00; F21V9/00; G02B5/18; H01S5/0239; H01S5/0683; F21Y115/30
Domestic Patent References:
WO2018092834A1 | 2018-05-24 | |||
WO2016072505A1 | 2016-05-12 | |||
WO2017057564A1 | 2017-04-06 | |||
WO2017217420A1 | 2017-12-21 |
Foreign References:
JP2016075857A | 2016-05-12 | |||
JP2008145669A | 2008-06-26 | |||
JP2016110808A | 2016-06-20 | |||
JP3141819U | 2008-05-22 | |||
JP2012243393A | 2012-12-10 | |||
JP2014235222A | 2014-12-15 | |||
JPH06162801A | 1994-06-10 | |||
JP2015163917A | 2015-09-10 | |||
JP2016146267A | 2016-08-12 |
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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